Frost dates in Alcona County, Michigan
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The average last spring frost in Alcona County falls May 8 to May 19 and the average first fall frost Sep 29 to Oct 16, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a to 6a. Places: Harrisville, Hubbard Lake, Lost Lake Woods. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 48705 | May 19 | Sep 29 | 5a | |
| 48721 | May 8 | Oct 16 | 6a | |
| 48728 | May 19 | Sep 29 | 5a | |
| 48737 | May 19 | Sep 29 | 5a | |
| 48738 | May 8 | Oct 16 | 6a | |
| 48740 | Harrisville | May 8 | Oct 16 | 5b |
| 48742 | Lost Lake Woods | May 8 | Oct 16 | 5b |
| 48745 | May 19 | Sep 29 | 5b | |
| 48762 | May 8 | Oct 16 | 5b | |
| 49747 | Hubbard Lake | May 17 | Oct 1 | 5a |
Nearby counties
Alpena County Iosco County Oscoda County Ogemaw County Montmorency County Arenac County
All Michigan counties · Download Michigan frost dates (CSV)
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